9th International Conference on Dentistry & Oral Health

After graduation in 1976, Dr.Arup started his career as a Dental Surgeon under the Ministry of Health, Government of Bangladesh and served in different district hospitals. He started health education programs in different electronic media like radio, television and published articles on dental health & tobacco hazards in national daily newspapers. Dr. Choudhury formed an NGO known as MANAS in 1989 on tobacco control and drug abuse Prevention .He Presented 38 scientific papers in international seminars and published 11 books on Dentistry, AIDS, Tobacco hazards, Diabetes & Drug abuse .At present He is a member of National Drug Control Board and National Tobacco Control Task Force of Bangladesh Government. Professor Arup Ratan Choudhury’s research & clinical works is focused on the management, treatment & prevention of medically Compromised patients. He has published many scientific papers and international presenter with on output of over 38 scientific papers presentation in international Seminars and published 11 books as author. His teaching activity includes lecturing and examining graduate & post graduate medical & Dental students of Bangladesh. Dr Chouidhjury received second highest national award of Bangladesh “Ekushe Podok “ for his outstanding contribution in social work . The most remarkable and tremendous achievement of Dr AR Choudhury is receiving the International Award from World Health Organization (WHO) –“Tobacco or Health “ Medal in recognition of his concept of Tobacco free Society.r Arup Ratan Choudhury is an exception achiever, specialist dental surgeon, humanist, media compare as well as a noted singer of Bangladesh. Who has devoted his life to the service of mankind, was born in 1952. He has shown a remarkable contribution in management of medically compromised patients and scientific research during the last 25 years .As a Dentist -cum social worker, Dr Arup Ratan Choudhury splits his time in Bangladesh between studying Dental disease in Diabetics and doing the works of anti tobacco movements and drug abuse. Dr Choudhury is a versatile genius and one of the popular television radio performer and presenter of health education program and vocal singer in Bangladesh since 1971 and frequently appears on Bengali television and radio programs. He obtained BDS from Dhaka University, WHO Fellowship from London University (England) in Dental public health in 1982-83, PhD from Dhaka University in Dentistry and nutrition 2000, Research Fellowship in Oral Biology and pathology from State University of New-York at Stony-Brook, NY, USA-1992-93.

Addressed regulatory pathways for medical device classification of AI diagnostic systems, discussing FDA and CE marking requirements. Presented systematic review findings on validation study methodologies, comparing cross-sectional versus prospective designs for establishing clinical utility. Outlined evidence hierarchies for regulatory submissions and clinical guideline integration.

Shared longitudinal outcome data from 342 lithium disilicate crowns fabricated using chairside milling systems. Reported 91.2% survival rate at 10 years with Kaplan-Meier analysis. Detailed complication patterns including chipping (4.7%), fracture (2.9%), and endodontic complications (1.2%). Examined patient and tooth-related risk factors through Cox regression modeling.

Presented meta-analysis synthesizing 47 in vitro studies evaluating intraoral scanner accuracy. Reported pooled trueness values ranging 12-56 μm and precision values 8-34 μm across commercial platforms. Discussed heterogeneity sources including reference standard selection, measurement protocols, and scan extent. Proposed standardized testing methodology for future accuracy studies.